PT-2021-2722 · Microsoft · Windows Hyper-V+1

Champtar · Published 2021-04-13 · Updated 2023-12-29 · CVE-2021-28444

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:C/A:N

Name of the Vulnerable Software and Affected Versions Windows Hyper-V (affected versions not specified)

Description The issue is related to insecure privilege management in the Hyper-V hardware virtualization system of Microsoft Windows. It may allow an attacker to bypass existing security restrictions by configuring Router Guard.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-264

Related Identifiers

BDU:2021-02256

CVE-2021-28444

Affected Products

Windows

Windows Hyper-V

References · 8

• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2021-28444 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-28444 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-02256 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28444 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-28444 · Security Note
• https://osv.dev/vulnerability/CVE-2021-28444 · Vendor Advisory
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-28444 · Vendor Advisory
• https://zerodayinitiative.com/blog/2021/4/13/the-april-2021-security-update-review · Note